@book{84018,
	author = {Kasala, Phineas},
	title = {Effective use of mobile technology of WhatsApp on learners conceptual understanding and problem-solving skills in Thermal physics: a case of grade 11 pupils at Mufulira secondary school},
	publisher = {Copperbelt University},
	year = {2021},
	address = {Kitwe},
	note = {Includes bibliographical references and appendices}
}